Yeah - its missed no doubt - rumor is they will be updating the SF area to be Amity for the Jaws 50th. So that is something if it happens.
Probably not telling you anything you don't already know but the Jaws ride itself was somewhat of a maintenance headache from what I have heard, but they also needed the space for HP.
I'm not a big HP fan, but without it I doubt Universal would be what it is today and the HP areas are amazing even to non-fans